Adopts ISO 7050:2011, which specifies the characteristics of cross-recessed countersunk (flat) head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.
AS/NZS 4407:2015 history
1970AS/NZS 4407:2015 Cross recessed countersunk head (flat) head self-tapping screws (ordinary head type)
1996AS/NZS 4407:1996 Cross recessed countersunk (flat) head tapping screws (common head style)